Main housing unit for a surveillance camera



1. Main housing unit for a surveillance camera

1.1: Perspective

1.2: Top

1.3 Right

1.4: Bottom

1.5: Left

1.6: Rear view

1.7: Front

The broken lines shown in the drawings depict portions of the main housing unit for a surveillance camera that form no part of the claimed design. 

CLAIM The ornamental design for a main housing unit for a surveillance camera, as shown and described. 